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VMMC VMMC Medical Solved Paper-2013

  • question_answer
    What should be the genotype of a round seeded tall plant, which when crossed with a plant of similar genotype produces the following percentage of phenotypes? (tall round = 56.26% tall wrinkled = 18.75%, dwarf round = 18.75% dwarf wrinkled =6.25%)

    A)  TtRr    

    B)  TTrr    

    C)  TTRr    

    D)  TtRR

    Correct Answer: A

    Solution :

     The      ratio      given      is - 9:3:3:1 (56-25:18.75:18.75:6.25). This ratio occurs due to the F, hybrid, which is heterozygous for both the genes, i.e., TtRr.


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